Abstract : Enriched videos are videos that are enriched with various elements during their play, such as captions, images, audio, hyperlinks, etc.: such enrichments could improve video accessibility to sensory impaired people. We firstly define precisely what video enrichment is. Secondly, we present two pilot studies related to perception of two kinds of audio enrichments for videos. More precisely, participants of these studies had to interact with variously enriched videos containing metaphorical auditory icons and speech synthesis enrichments. These studies indicate different trails to follow in future experiments, related to quality, variability and quantity of enrichments.